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 Form 1 Chemistry Lessons on Introduction to Chemistry.

By the end of the lesson the learner should be able to:
-Define chemistry.
-Explain the meaning and different phases/states of matter.

Chemistry is defined as the branch of science that deals with the structure composition, properties and behavior of matter.

Matter
-Matter is anything that has weight/mass and occupies space.
States/phases of matter
-Naturally, there are basically three states of matter.
(i) Solid-e.g. soil, sand, copper metal, bucket, ice.
(ii)Liquid-e.g water, Petrol, ethanol/alcohol, Mercury (liquid metal).
(iii) Gas- e.g. Oxygen, Nitrogen, Water vapor.
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 (7m 36s)
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